Guides & Resources — DGX Spark & GB10
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New to DGX Spark & GB10?
Start with the guide hub: the essential reads, reference tables and parts in one place →
How to Connect Two ASUS Ascent GX10 Systems: The Cable, the Ports and the Setup
Two ASUS Ascent GX10s connect with one QSFP cable in their ConnectX-7 ports. Which cable to buy, ASUS's own setup steps, how to check you are getting 200 Gb/s, and what changes at three units.
MCP1650-V00AE30 for DGX Spark: Specs, Price, and How It Compares to the NJAAKK-N911
The MCP1650-V00AE30 is a 0.5 m 200G QSFP56 DAC that links two DGX Sparks at the full 200 Gb/s the port supports. Specs, price, and an honest comparison with the NJAAKK-N911 stacking cable.
Can You Cluster Different GB10 Systems? Mixing DGX Spark, ASUS, Dell, HP, MSI, Lenovo, Gigabyte and Acer
Yes — any GB10 system clusters with any other. Which brand mixes have been run, what to buy at two, three and four nodes, and the four things that actually differ between brands.
MikroTik CRS804 + DGX Spark: The Exact Cables for a 4-Node Cluster (and Room to Grow)
Two MCP7H60-W002 QSFP-DD to 2x200G breakout DACs put four DGX Sparks on two ports of a MikroTik CRS804 for $358.90, leaving two 400G ports free. Port math for the CRS804 and CRS812, the RouterOS settings that make the legs link, and the parts list.
DGX Spark Stuck at 100 Gb/s (or 10) on a 400G Breakout? The Fixes That Get You to 200G
No link, a 10 Gb/s ceiling, or a 100 Gb/s plateau on a DGX Spark breakout cluster each have a different cause. The symptom-to-fix table, the RouterOS and Linux settings operators used to reach about 200 Gb/s per pair, and how to test.
MCP7H60-W001R30 vs W002R26 vs W003R26: Which 400G QSFP-DD Breakout Do You Need?
MCP7H60-W001R30, W002R26 and W003R26 are the same 400G QSFP-DD to 2x200G QSFP56 breakout in 1, 2 and 3 m lengths. How to decode the suffix, pick a length, and avoid the look-alike part numbers that won't fit.
Can You Build a 4-Node DGX Spark Cluster Without a Switch? The Ring That Works and the Breakout Trick That Doesn't
A four-node full mesh can't be built and Spark ports don't split — but a switchless four-node ring works with custom NCCL software, outside NVIDIA support. Ring vs. switch, rack cabling, and parts and prices for each.
DGX Spark Ports Explained: Why USB-C Isn't Your Clustering Cable (and QSFP Is)
DGX Spark has four USB-C ports, an RJ-45 jack, and two QSFP connectors, and only one of them is built for clustering. Here's what each port is actually for, and which cable to use when linking two Sparks.
Why Connect Two (or More) NVIDIA DGX Sparks? Hardware Limits, Topologies, and Scaling Explained
The NVIDIA DGX Spark is already a remarkable machine on its own — a desktop-sized AI supercomputer packing up to 1 petaFLOP of FP4 AI performance, 128 GB of unified memory, and a full NVIDIA software stack. But there are very real reasons why researchers,...
Does the DGX Spark Cable Work With Every GB10 System? (ASUS, Dell, HP, MSI, Lenovo, Gigabyte & Acer)
If you picked up an ASUS Ascent GX10, a Dell Pro Max GB10, an HP ZGX Nano AI Station, an MSI EdgeXpert MS-C931, a Lenovo ThinkStation PGX, a Gigabyte AI TOP ATOM, or an Acer Veriton GN100 instead of an NVIDIA-branded DGX Spark, you're probably...
NJAAKK-N911 vs NJAAKK-0006 vs LMTQF022-SD-R: Which DGX Spark Cable Do You Actually Need?
Several part numbers circulate for the NVIDIA DGX Spark stacking cable — NJAAKK-N911, NJAAKK-0006, LMTQF022-SD-R and compatible-market variants. They are one specification across two manufacturers and two lengths. This guide decodes each part number, explains what separates them, and tells you which one to buy.
NVIDIA DGX Spark Stacking Cable NJAAKK-N911: What It Does, Who Needs It, and How It Differs from the DAC
If you have been researching how to connect two NVIDIA DGX Spark systems, you have probably seen several cable part numbers referenced: the Amphenol NJAAKK-N911, the Luxshare LMTQF022-SD-R, and the Mellanox MCP1650-V00AE30. This article explains what the NJAAKK-N911 is, how the DGX Spark's networking actually...